10861863012 has 288 divisors, whose sum is σ = 37378548480. Its totient is φ = 2567946240.

The previous prime is 10861862969. The next prime is 10861863031. The reversal of 10861863012 is 21036816801.

10861863012 is a `hidden beast` number, since 1 + 0 + 8 + 6 + 1 + 8 + 630 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2628564 + ... + 2632692.

Almost surely, 2^10861863012 is an apocalyptic number.

10861863012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10861863012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18689274240).

10861863012 is an abundant number, since it is smaller than the sum of its proper divisors (26516685468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10861863012 is a wasteful number, since it uses less digits than its factorization.

10861863012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243 (or 4238 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 10861863012 in words is "ten billion, eight hundred sixty-one million, eight hundred sixty-three thousand, twelve".